New York wastewater permits expiring in 2027
52 NPDES permits · 1,037 MGD combined average flow
52 publicly owned wastewater treatment plants in New York hold NPDES permits that expire during 2027, issued by New York State Department of Environmental Conservation. The table lists each plant with its permit number, expiry month, average flow, treatment technology and three-year violation count, in order of expiry.
An NPDES permit runs for five years. To keep discharging, a plant must apply for renewal at least 180 days before the expiry date, and the renewed permit usually arrives with tighter effluent limits, new monitoring requirements or a compliance schedule. That is why the year a permit expires is the year a plant starts budgeting for upgrades: nutrient removal, disinfection, capacity or controls.
| Facility | City | Avg flow (MGD) | NPDES permit | Expires | Violations (3y) |
|---|---|---|---|---|---|
| Village Of Great Neck STP | Great Neck | 2.54 | NY0026999 | Jan 2027 | 1 |
| Jordan STP | Jordan | 0.08 | NY0105007 | Jan 2027 | 3 |
| Washington Co Sd#2 WWTP | Fort Edward | 1.97 | NY0183695 | Feb 2027 | 20 |
| Napanoch Sewer Imp Area | Napanoch | 0.42 | NY0029718 | Feb 2027 | 4 |
| Hopewell Hamlet Sewer District | Hopewell Junction | 0.1 | NY0267953 | Feb 2027 | 35 |
| Constableville (v) STP | Constableville | 0.03 | NY0110418 | Feb 2027 | 24 |
| Corning (c) WWTP | Corning | 1.13 | NY0025721 | Mar 2027 | 7 |
| Park Guilderland NE Ind WWTP | Guilderland | 0.15 | NY0022217 | Mar 2027 | 9 |
| Freeville (v) WWTP | Freeville | 0.05 | NY0110493 | Mar 2027 | 65 |
| Rensselaer Falls WWTP | Rensselaer Falls | 0.03 | NY0257613 | Mar 2027 | 10 |
| Patchogue (v) WWTP | Patchogue | 0.4 | NY0023922 | Apr 2027 | 10 |
| Holland (t) STP | Holland | 0.12 | NY0108103 | Apr 2027 | 0 |
| Middleburgh (v) WWTP | Middleburgh | 0.09 | NY0192309 | Apr 2027 | 1 |
| Akron (v) WWTP | Akron | 0.52 | NY0031003 | May 2027 | 0 |
| South Corning WWTP | Corning | 0.11 | NY0110531 | May 2027 | 8 |
| Robin Meadows Sd | Slate Hill | 0.04 | NY0029149 | May 2027 | 14 |
| Elma (t) Sd#7-Pond Brook Townhomes | Elma | 0.0044 | NY0203360 | May 2027 | 5 |
| Newtown Creek Water Pollution Control Plant | Brooklyn | 187.2 | NY0026204 | Jun 2027 | 4 |
| NYC-DEP Wards Island WPCP | Manhattan | 182.4 | NY0026131 | Jun 2027 | 26 |
| Hunts Point Water Pollution Control Plant | Bronx | 123.8 | NY0026191 | Jun 2027 | 11 |
| Nycdep - Bowery Bay WRRF | Astoria | 95.2 | NY0026158 | Jun 2027 | 8 |
| Owls Head Water Pollution Control Plant | Brooklyn | 88 | NY0026166 | Jun 2027 | 9 |
| Coney Island Water Pollution Control Plant | Brooklyn | 80.1 | NY0026182 | Jun 2027 | 8 |
| Jamaica Water Pollution Control Plant | Jamaica | 74.6 | NY0026115 | Jun 2027 | 11 |
| Tallman Island Wastewater Treatment Plant | Queens | 57.8 | NY0026239 | Jun 2027 | 2 |
| NYC DEP 26 Ward WPCP | Brooklyn | 39.7 | NY0026212 | Jun 2027 | 12 |
| Nycdep - Red Hook WPCP | Brooklyn | 27.5 | NY0027073 | Jun 2027 | 2 |
| Nycdep - Oakwood Beach WPCP | Staten Island | 26.56 | NY0026174 | Jun 2027 | 6 |
| Port Richmond Water Pollution Control Plant | Staten Island | 23 | NY0026107 | Jun 2027 | 2 |
| New York (c) - Rockaway WPCP | Rockaway Park | 18.8 | NY0026221 | Jun 2027 | 2 |
| Western Wayne County Regional Wastewater Treatment Plant | Palmyra, Town Of | 1.4 | NY0272141 | Jun 2027 | 34 |
| Manchester-Shortville Jnt STP | Manchester | 0.41 | NY0030813 | Jun 2027 | 0 |
| Wayland (v) STP | Wayland | 0.16 | NY0032999 | Jun 2027 | 14 |
| Warwick (v) WWTP | Warwick | 0.69 | NY0023680 | Jul 2027 | 30 |
| Marlboro WWTP | Marlboro | 0.12 | NY0109720 | Jul 2027 | 4 |
| Cherry Creek (t) WWTP | Cherry Creek | 0.03 | NY0204081 | Jul 2027 | 44 |
| Nichols (t) STP | Nichols | — | NY0262480 | Jul 2027 | 20 |
| Hidden Valley Estates Sd | Otisville | 0.03 | NY0034436 | Aug 2027 | 7 |
| Fort Brewerton WWTP | Central Square | 0.17 | NY0245062 | Sep 2027 | 16 |
| Limestone WWTP | Limestone | 0.11 | NY0029068 | Sep 2027 | 23 |
| Country Manor STP | Mahopac | 0.04 | NY0029017 | Sep 2027 | 6 |
| Lake Huntington Sd | Narrowsburg | 0.03 | NY0030694 | Sep 2027 | 4 |
| N. Lawrence & Nicholville STP | North Lawrence | 0.02 | NY0110116 | Sep 2027 | 95 |
| Honeoye Lake Co Consolidated Sd | Honeoye | 0.44 | NY0107255 | Oct 2027 | 45 |
| Fleetwood Manor Sd WWTP | Wappingers Falls | 0.03 | NY0021601 | Oct 2027 | 7 |
| Fine - T Wanakena Sewer District | Wanakena | 0.0045 | NY0034533 | Oct 2027 | 2 |
| Parish (v) WWTP | Parish | 0.08 | NY0107654 | Nov 2027 | 131 |
| Kerhonkson WWTF | Ellenville | 0.03 | NY0109924 | Nov 2027 | 1 |
| Dover Ridge Estates STP | Poughquag | 0.02 | NY0164933 | Nov 2027 | 24 |
| Mexico - V STP | Mexico | 0.26 | NY0036617 | Dec 2027 | 10 |
| Aurora (v) WWTP | Aurora | 0.11 | NY0023558 | Dec 2027 | 5 |
| Canaseraga (v) WWTF | Canaseraga | 0.06 | NY0269573 | Dec 2027 | 356 |
New York permit renewals in 2027: questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026.
Wastewater terms: NPDES permit · POTW · Biological nutrient removal · Tertiary treatment · Lift station · Inflow and infiltration · all terms
Cite this page
Journalists, researchers and educators are welcome to quote these figures. Please credit Klarifi as the source and link to this page.
Klarifi. “NPDES permits expiring in 2027: New York wastewater plants.” Updated October 26, 2026. https://klarifi.io/facilities/new-york/permits-expiring/2027Need a custom cut of the data for a state, a county or a list of plants? Email info@klarifi.io.